Linux · SUSE Linux Enterprise · Security advisory · July 30, 2025
SUSE-SU-2025:02546-1: MozillaThunderbird security update
SUSE-SU-2025:02546-1, released July 30, 2025, fixes 25 CVEs in MozillaThunderbird (version 140.1.0-150200.8.230.1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
25
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0790
94th percentile
Priority of the 25 CVEs
Patch now 0
Urgent 0
High 23
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| MozillaThunderbird | opensuse-leap 15.6 | 140.1.0-150200.8.230.1 |
| MozillaThunderbird | sles 15.6 | 140.1.0-150200.8.230.1 |
| MozillaThunderbird | sles 15.7 | 140.1.0-150200.8.230.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-6424 | Use-after-free in FontFaceSet | 9.8 | 0.0790 | None reported |
| High | CVE-2025-6436 | Memory safety bugs fixed in Firefox 140 and Thunderbird 140 | 8.1 | 0.0426 | None reported |
| High | CVE-2025-8028 | Large branch table could lead to truncated instruction | 9.8 | 0.0058 | None reported |
| High | CVE-2025-8031 | Incorrect URL stripping in CSP reports | 9.8 | 0.0051 | None reported |
| High | CVE-2025-8034 | Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141 | 8.8 | 0.0046 | None reported |
| High | CVE-2025-6435 | Save as in Devtools could download files without sanitizing the extension | 8.1 | 0.0046 | None reported |
| High | CVE-2025-8036 | DNS rebinding circumvents CORS | 8.1 | 0.0045 | None reported |
| High | CVE-2025-8027 | JavaScript engine only wrote partial return value to stack | 7.5 | 0.0043 | None reported |
| High | CVE-2025-8033 | Incorrect JavaScript state machine for generators | 7.5 | 0.0043 | None reported |
| High | CVE-2025-8035 | Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141 | 8.8 | 0.0040 | None reported |
| High | CVE-2025-8029 | javascript: URLs executed on object and embed tags | 8.1 | 0.0038 | None reported |
| High | CVE-2025-8030 | Potential user-assisted code execution in “Copy as cURL” command | 8.1 | 0.0038 | None reported |
| High | CVE-2025-8032 | XSLT documents could bypass CSP | 8.1 | 0.0038 | None reported |
| High | CVE-2025-6427 | connect-src Content Security Policy restriction could be bypassed | 9.1 | 0.0037 | None reported |
| High | CVE-2025-8040 | Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141 | 8.8 | 0.0037 | None reported |
| High | CVE-2025-6429 | Incorrect parsing of URLs could have allowed embedding of youtube.com | 7.5 | 0.0035 | None reported |
| High | CVE-2025-6432 | DNS Requests leaked outside of a configured SOCKS proxy | 8.6 | 0.0035 | None reported |
| High | CVE-2025-8039 | Search terms persisted in URL bar | 8.1 | 0.0034 | None reported |
| High | CVE-2025-6425 | The WebCompat WebExtension shipped with Firefox exposed a persistent UUID | 7.5 | 0.0031 | None reported |
| High | CVE-2025-6433 | WebAuthn would allow a user to sign a challenge on a webpage with an invalid TLS certificate | 9.8 | 0.0030 | None reported |
| High | CVE-2025-8038 | CSP frame-src was not correctly enforced for paths | 9.8 | 0.0027 | None reported |
| High | CVE-2025-8037 | Nameless cookies shadow secure cookies | 9.1 | 0.0027 | None reported |
| High | CVE-2025-6430 | Content-Disposition header ignored when a file is included in an embed or object tag | 7.5 | 0.0027 | None reported |
| Routine | CVE-2025-6434 | HTTPS-Only exception screen lacked anti-clickjacking delay | 4.3 | 0.0028 | None reported |
| Routine | CVE-2025-6426 | thunderbird: The executable file warning did not warn users before opening files with the `terminal` extension | n/a | 0.0021 | None reported |
Showing 1 to 25 of 25
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